diff --git a/mods/HELP/mcl_craftguide/init.lua b/mods/HELP/mcl_craftguide/init.lua
index 80d167ae7d..0ee29397e0 100644
--- a/mods/HELP/mcl_craftguide/init.lua
+++ b/mods/HELP/mcl_craftguide/init.lua
@@ -58,7 +58,7 @@ local group_stereotypes = {
 	quartz_block = "mcl_nether:quartz_block",
 	banner       = "mcl_banners:banner_item_white",
 	mesecon_conductor_craftable = "mesecons:wire_00000000_off",
-	purpur       = "mcl_end:purpur_block",
+	purpur_block = "mcl_end:purpur_block",
 	compass      = mcl_compass.stereotype,
 	clock        = mcl_clock.sterotype,
 }
@@ -80,6 +80,7 @@ local group_names = {
 	wood_stairs = "Any wooden stairs",
 	coal = "Any coal",
 	quartz_block = "Any kind of quartz block",
+	purpur_block = "Any kind of purpur block",
 	stonebrick = "Any stone bricks",
 }
 
diff --git a/mods/ITEMS/mcl_end/building.lua b/mods/ITEMS/mcl_end/building.lua
index c3da88b1f6..0caa2bc4e0 100644
--- a/mods/ITEMS/mcl_end/building.lua
+++ b/mods/ITEMS/mcl_end/building.lua
@@ -29,7 +29,7 @@ minetest.register_node("mcl_end:purpur_block", {
 	tiles = {"mcl_end_purpur_block.png"},
 	is_ground_content = false,
 	stack_max = 64,
-	groups = {pickaxey=1, building_block=1, material_stone=1, purpur=1},
+	groups = {pickaxey=1, building_block=1, material_stone=1, purpur_block=1},
 	sounds = mcl_sounds.node_sound_stone_defaults(),
 	_mcl_blast_resistance = 30,
 	_mcl_hardness = 1.5,
@@ -43,7 +43,7 @@ minetest.register_node("mcl_end:purpur_pillar", {
 	is_ground_content = false,
 	on_place = mcl_util.rotate_axis,
 	tiles = {"mcl_end_purpur_pillar_top.png", "mcl_end_purpur_pillar_top.png", "mcl_end_purpur_pillar.png"},
-	groups = {pickaxey=1, building_block=1, material_stone=1, purpur=1},
+	groups = {pickaxey=1, building_block=1, material_stone=1, purpur_block=1},
 	sounds = mcl_sounds.node_sound_stone_defaults(),
 	_mcl_blast_resistance = 30,
 	_mcl_hardness = 1.5,
diff --git a/mods/ITEMS/mcl_stairs/register.lua b/mods/ITEMS/mcl_stairs/register.lua
index 1875eff7a6..700852fdde 100644
--- a/mods/ITEMS/mcl_stairs/register.lua
+++ b/mods/ITEMS/mcl_stairs/register.lua
@@ -116,13 +116,13 @@ mcl_stairs.register_stair_and_slab("red_nether_brick", "mcl_nether:red_nether_br
 
 mcl_stairs.register_stair_and_slab_simple("end_bricks", "mcl_end:end_bricks", "End Stone Brick Stairs", "End Stone Brick Slab", "Double End Stone Brick Slab")
 
-mcl_stairs.register_stair("purpur_block", "group:purpur",
+mcl_stairs.register_stair("purpur_block", "group:purpur_block",
 		{pickaxey=1, material_stone=1},
 		{"mcl_end_purpur_block.png"},
 		"Purpur Stairs",
 		mcl_sounds.node_sound_stone_defaults(),
 		1.5)
-mcl_stairs.register_slab("purpur_block", "group:purpur",
+mcl_stairs.register_slab("purpur_block", "group:purpur_block",
 		{pickaxey=1, material_stone=1},
 		{"mcl_end_purpur_block.png"},
 		"Purpur Slab",